Driven by Values

A women-owned and managed law firm expanding disability rights throughout California.

Meet Our Team

Celia McGuinness

Founder and Principal

     Celia McGuinness is a renowned disability rights trial lawyer. With more than 30 federal and State trials under her belt, as well as multiple arguments before the Ninth Circuit and California Courts of Appeals, she is a committed advocate ready to pursue her clients’ interests in any venue.

     Celia has expanded the law of disability access with published opinions including Tamara v. El Camino Hospital, the first case in the nation to rule that the ADA prohibits excluding service dogs from a locked psychiatric unit and C.L. v. Del Amo Hospital, Inc., the first case in the nation to rule that the ADA prohibits imposing certification requirements on service dogs.

     She has been a visiting clinical professor at the University of San Francisco Law School as well as an adjunct professor of Moot Court and Legal Writing at Hastings College of the Law. She has published scholarly and opinion articles and is a frequent speaker on disability rights issues.

     Celia was appointed to three terms on the California Commission on Disability Access by Governor Jerry Brown. CCDA’s mission is to promote disability access in California through communication and collaboration with the disability and business communities and government. She isa member of the Disability Rights Bar Association as well as a sustaining member and past Board Member of the Alameda-Contra Costa Trial Lawyers Association.

Deborah Gettleman

Senior Associate

     Deborah Gettleman is an accomplished civil rights litigator with an expertise in fair housing. Before joining Celia at Derby, McGuinness & Goldsmith and now the McGuinness Law Group, Deborah worked at Disability Rights California, a renowned disability rights advocacy and litigation nonprofit.  As a Supervising Attorney in the Litigation Unit, Deborah represented people with disabilities in state and federal lawsuits to enforce and expand their rights to equality under the ADA, the Rehabilitation Act and Fair Housing Laws. Deborah also successfully petitioned the California Supreme Court to review Reilly v. Marin Hous. Auth., 23 Cal.App.5th 425 (2018), which was ultimately overturned, impacting the way rent is calculated for thousands of Californians living in federally-subsidized housing who care for family members with developmental disabilities.

     Prior to Disability Rights California, Deborah worked at Legal Services of Northern California representing tenants in housing litigation. Working on behalf of hundreds of struggling Californians during the foreclosure crisis, solidified her commitment to fighting for the rights of all people to have access to safe and equal housing. During her time at Legal Services, she tried dozens of cases in Superior Court and in administrative hearings.

     At Derby, McGuinness & Goldsmith, Deborah helped expand the housing discrimination practice, while solidifying her skills litigating all types of ADA cases.

     Deborah frequently presents at conferences, schools, to business entities and tenant advocacy organizations about disability rights and fair housing laws. She served on a coalition of housing and disability rights attorneys which provided comments to the Fair Employment and Housing Council regarding proposed changes to fair housing regulations.

     Deborah is a graduate of the UC Davis School of Law. During law school she was an extern for the Honorable Lawrence K. Karlton, U.S.D.C., Eastern District of California, and a clerk in the San Francisco Public Defender’s Office. Upon graduation, she earned the MLK Public Service Award, given annually to honor the student who best exemplifies Dr. King’s vision and commitment to public service.

Photo of Liza Cristol-Deman

Liza Cristol-Deman

Senior Counsel

    Liza Cristol-Deman is a national expert in housing discrimination and an experienced litigator, negotiator, and trial attorney. She co-authored the California Fair Housing and Public Accommodations Rutter Guide and the fair housing chapter of the Nevada Real Property Practice and Procedure Manual. She has represented hundreds of victims of housing discrimination in federal and state court, and in administrative proceedings around the country.  

    Before joining McGuinness Law Group, Liza was a partner at Brancart & Brancart where she litigated for 28 years representing plaintiffs in housing discrimination cases. Her most notable cases include the first-ever California trial involving housing discrimination based on sexual orientation, groundbreaking work challenging racially-biased home appraisals, and the landmark case, Giebeler v. M&B & Associates, in which the Ninth Circuit Court of Appeals expanded the rights of people with disabilities to reasonable accommodations in housing.  
    In 2014, Liza served as lead counsel for the class in a certified class action involving violations of California’s residential security deposit statute at a large apartment complex in Silicon Valley. The jury awarded over $2.25 million in compensatory and punitive damages.
    She has been honored for her groundbreaking work by many state and local agencies, including being named a “Civil Rights Hero” by the California Department of Fair Employment and Housing (now known as the Civil Rights Department).
    She serves on the steering committee for the State Bar of California Housing and Public Accommodations Section and the National Fair Housing Alliance litigation committee. She is a regular instructor and contributor at conferences and State Bar trainings in housing rights law.

Sally Garretson

Legal Assistant

     Sally Garretson is a dedicated legal assistant committed to advancing disability rights and promoting equity for underserved communities. A proud Oakland native, Sally holds an Associate of Arts in Political Science from Berkeley City College and a Bachelor of Arts in Public Affairs from UCLA, where her studies focused on social welfare, urban planning, and public policy. While earning her degree, Sally worked as a legal assistant at the Tenants Law Firm, a nonprofit law firm specializing in tenant habitability cases, where she designed her capstone project on expanding access to housing rights for Spanish-speaking tenants of Los Angeles.

     Before joining the McGuinness Law Group, Sally contributed to social justice initiatives through organizations such as Beyond Differences, Coro Northern California, and BAY-Peace, where she empowered Bay Area youth through leadership and advocacy programs. Her commitment to social justice was further shaped by her work with the Title IX office at UC Berkeley, where she gained valuable experience addressing issues of sex discrimination and harassment on campus. Sally aspires to attend law school to continue advocating for underserved communities as an attorney.

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